WM8731 / WM8731L
Production Data
REGISTER
ADDRESS
BIT
LABEL
DEFAULT
DESCRIPTION
0000000
4:0
LINVOL[4:0]
10111
( 0dB )
Left Channel Line Input Volume
Control
Left Line In
11111 = +12dB . . 1.5dB steps down
to 00000 = -34.5dB
7
8
LINMUTE
1
0
Left Channel Line Input Mute to ADC
1 = Enable Mute
0 = Disable Mute
LRINBOTH
Left to Right Channel Line Input
Volume and Mute Data Load Control
1 = Enable Simultaneous Load of
LINVOL[4:0] and LINMUTE to
RINVOL[4:0] and RINMUTE
0 = Disable Simultaneous Load
0000001
4:0
7
RINVOL[4:0]
RINMUTE
10111
( 0dB )
Right Channel Line Input Volume
Control
Right Line In
11111 = +12dB . .1.5dB steps down
to 00000 = -34.5dB
1
0
Right Channel Line Input Mute to
ADC
1 = Enable Mute
0 = Disable Mute
8
RLINBOTH
Right to Left Channel Line Input
Volume and Mute Data Load Control
1 = Enable Simultaneous Load of
RINVOL[4:0] and RINMUTE to
LINVOL[4:0] and LINMUTE
0 = Disable Simultaneous Load
0000010
6:0
LHPVOL
[6:0]
1111001
( 0dB )
Left Channel Headphone Output
Volume Control
Left Headphone
Out
1111111 = +6dB
. . 1dB steps down to
0110000 = -73dB
0000000 to 0101111 = MUTE
7
8
LZCEN
0
0
Left Channel Zero Cross detect
Enable
1 = Enable
0 = Disable
LRHPBOTH
Left to Right Channel Headphone
Volume, Mute and Zero Cross Data
Load Control
1 = Enable Simultaneous Load of
LHPVOL[6:0] and LZCEN to
RHPVOL[6:0] and RZCEN
0 = Disable Simultaneous Load
PD, Rev 4.9, October 2012
50
w
WOLFSON [ WOLFSON MICROELECTRONICS PLC ]
